Results 11 to 20 of about 1,206 (204)
Variable-Weighted Grayscale Centroiding and Accuracy Evaluating
Advances in Mechanical Engineering, 2013 Grayscale-weighted centroiding weights the pixel intensity to estimate the center of a circular image region such as a photogrammetric target or a star image.
Mingli Dong +4 more
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Fusion of a priori information and energy distribution for the centroiding method of the star sensor
AIP AdvancesThe star sensor is the most accurate measurement instrument in the spacecraft attitude measurement system, and the accurate centroid of the star point is the basis for ensuring the performance of the star sensor.
Liu Zhang, Bo Sun, He Liu, Guowei Fan
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IEEE Photonics JournalIn intersatellite laser communications, the centroiding accuracy of a laser spot is crucial for maintaining steady communication links. However, the systematic error introduced by discrete sampling restricts further improvement of centroiding accuracy ...
Xiangsheng Meng +5 more
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From Centroided to Profile Mode: Machine Learning for Prediction of Peak Width in HRMS Data. [PDF]
Anal Chem, 2021 Centroiding is one of the major approaches used for size reduction of the data generated by high-resolution mass spectrometry. During centroiding, performed either during acquisition or as a pre-processing step, the mass profiles are represented by a ...
Samanipour S +5 more
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Centroid-UNet: Detecting Centroids in Aerial Images
CoRR, 2021 In many applications of aerial/satellite image analysis (remote sensing), the generation of exact shapes of objects is a cumbersome task. In most remote sensing applications such as counting objects requires only location estimation of objects. Hence, locating object centroids in aerial/satellite images is an easy solution for tasks where the object's ...
N. Lakmal Deshapriya +3 more
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Centroidal Localization Game [PDF]
The Electronic Journal of Combinatorics, 2018 One important problem in a network $G$ is to locate an (invisible) moving entity by using distance-detectors placed at strategical locations in $G$. For instance, the famous metric dimension of a graph $G$ is the minimum number $k$ of detectors placed in some vertices $\{v_1,\cdots,v_k\}$ such that the vector $(d_1,\cdots,d_k)$ of the distances $d(v_i ...
Bartlomiej Bosek +5 more
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Multispectral calibration to enhance the metrology performance of C-mount camera systems [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014 Low cost monochrome camera systems based on CMOS sensors and C-mount lenses have been successfully applied to a wide variety of metrology tasks. For high accuracy work such cameras are typically equipped with ring lights to image retro-reflective ...
S. Robson +3 more
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Development of Daytime Observation Model for Star Sensor and Centroiding Performance Analysis [PDF]
Journal of Astronomy and Space Sciences, 2005 A star sensor daytime observation model is developed in order to test the performance of the star sensor useful for daylight application. The centroid errors of the star sensor in the day time application are computed by using the model.
Jakyoung Nah, Yu Yi, Yong Ha Kim
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Myopic aberrations: Impact of centroiding noise in Hartmann Shack wavefront sensing
, 2022 Purpose: The presence of photon noise and readout noise can lead to centroiding errors in a Hartmann Shack wavefront sensor (HS) and hence limit the accuracy of wavefront reconstruction.
Vohnsen, Brian, Akondi, Vyas
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Convolutional neural network-based reconstruction for positronium annihilation localization
Scientific Reports, 2022 A novel hermetic detector composed of 200 bismuth germanium oxide crystal scintillators and 393 channel silicon photomultipliers has been developed for positronium (Ps) annihilation studies. This compact 4π detector is capable of simultaneously detecting
Jin Jegal +4 more
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